Making molded articles from alkali metal cyanide



Patented Nov. 10, 1942 KonradGabel.

CYANID LndwIgshafen-on-the-Rhlne, Germnygvestedlnthealienrropertycustodian Kunming; Application June 1, 1940, Serialno. users. In

Germany June 8, 1939 The present invention relates to a process for the manufacture oi molded articles from alkali metalcyanides.

According to a known process'ior the manutacture of molded articles from alkali metal cy-' anlde's. powders of alts-11 metal cyanides are a molded under such high pressures that the granular structure oi the powder;vanlshes and the moldings assume a crystalline structure whereby their resistance to pressure is considerablyincreased. In practising this process diiiiculties. areoiten encountered in the removal or the moldingstromthemolds.

Ihsvenow round thatthisdlillculty easily 'beovereomebywettingtheinnersurfacesolthe molds, before the molding is done, with non-oily liquids, as water or aqueous liquids. water containing a little alkali metal cyanide dissolved having proved particularly adapted for the purpose. Moldings free from objection are thus obtained which may easily be removed from the mold, while the use of oily liquids would soil the merchandise and detract from its selling value.

What I claim is: e

The process of molding solid alkali metal cy nide by applying Pressure which includes the step or moistening the mold with a dilute aqueous solution of alkali metal cyanide.

KONRAD GABEL. 

